directness vs candidness

directness and candidness both are nouns.

Word	Noun	Adjective	Verb	Adverb
directness	Yes	No	No	No
candidness	Yes	No	No	No

As nouns, directness and candidness are synonyms defined as:

directness and candidness: the quality of being honest and straightforward in attitude and speech

Other synonyms of directness include candor, candour, forthrightness, frankness.

directness (noun)	candidness (noun)
trueness of course toward a goal	the quality of being honest and straightforward in attitude and speech
the quality of being honest and straightforward in attitude and speech